| /* |
| * Copyright (C) 2008 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.hit; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class ClassObj extends Instance implements Comparable<ClassObj> { |
| String mClassName; |
| long mSuperclassId; |
| |
| String[] mFieldNames; |
| int[] mFieldTypes; |
| |
| String[] mStaticFieldNames; |
| int[] mStaticFieldTypes; |
| byte[] mStaticFieldValues; |
| |
| ArrayList<Instance> mInstances = new ArrayList<Instance>(); |
| Set<ClassObj> mSubclasses = new HashSet<ClassObj>(); |
| |
| int mSize; |
| |
| public ClassObj(long id, StackTrace stack, String className) { |
| mId = id; |
| mStack = stack; |
| mClassName = className; |
| } |
| |
| @Override |
| public final void resolveReferences(State state) { |
| ByteArrayInputStream bais = |
| new ByteArrayInputStream(mStaticFieldValues); |
| DataInputStream dis = new DataInputStream(bais); |
| int[] types = mStaticFieldTypes; |
| final int N = types.length; |
| |
| /* |
| * Spin through the list of static fields, find all object references, |
| * and list ourselves as a reference holder. Also add them to |
| * the list of root objects. |
| */ |
| try { |
| for (int i = 0; i < N; i++) { |
| int type = types[i]; |
| int size = Types.getTypeSize(type); |
| |
| if (type == Types.OBJECT) { |
| long id; |
| |
| if (size == 4) { |
| id = dis.readInt(); |
| } else { |
| id = dis.readLong(); |
| } |
| |
| RootObj root = new RootObj(RootType.JAVA_STATIC, id); |
| |
| if (id == 0) { |
| root.mComment = String.format( |
| "Static field %s:%s null", |
| mClassName, |
| mStaticFieldNames[i]); |
| } else { |
| Instance instance = state.findReference(id); |
| |
| instance.addParent(this); |
| |
| root.mComment = String.format( |
| "Static field %s:%s %s [%s] 0x%08x", |
| mClassName, |
| mStaticFieldNames[i], |
| instance.getTypeName(), |
| instance.mHeap.mName, |
| id); |
| } |
| |
| mHeap.addRoot(root); |
| } else { |
| dis.skipBytes(size); |
| } |
| } |
| } catch (Exception e) { |
| e.printStackTrace(); |
| System.exit(1); |
| } |
| |
| // Lastly, add ourself as a subclass of our superclass |
| if (mSuperclassId != 0) { |
| ClassObj superclass = state.findClass(mSuperclassId); |
| |
| superclass.addSubclass(this); |
| } |
| } |
| |
| public final void addSubclass(ClassObj subclass) { |
| mSubclasses.add(subclass); |
| } |
| |
| public final void dumpSubclasses() { |
| for (ClassObj subclass: mSubclasses) { |
| System.out.println(" " + subclass.mClassName); |
| } |
| } |
| |
| public final String toString() { |
| return mClassName.replace('/', '.'); |
| } |
| |
| public final void addInstance(Instance instance) { |
| mInstances.add(instance); |
| } |
| |
| public final void setSuperclassId(long id) { |
| mSuperclassId = id; |
| } |
| |
| public final void setFieldNames(String[] names) { |
| mFieldNames = names; |
| } |
| |
| public final void setFieldTypes(int[] types) { |
| mFieldTypes = types; |
| } |
| |
| public final void setStaticFieldNames(String[] names) { |
| mStaticFieldNames = names; |
| } |
| |
| public final void setStaticFieldTypes(int[] types) { |
| mStaticFieldTypes = types; |
| } |
| |
| public final void setStaticFieldValues(byte[] values) { |
| mStaticFieldValues = values; |
| } |
| |
| public final void dump() { |
| System.out.println("+---------- ClassObj dump for: " + mClassName); |
| |
| System.out.println("+----- Static fields"); |
| |
| for (int i = 0; i < mStaticFieldNames.length; i++) { |
| System.out.println(mStaticFieldNames[i] + ": " |
| + mStaticFieldTypes[i]); |
| } |
| |
| System.out.println("+----- Instance fields"); |
| |
| for (int i = 0; i < mFieldNames.length; i++) { |
| System.out.println(mFieldNames[i] + ": " + mFieldTypes[i]); |
| } |
| } |
| |
| @Override |
| public final String getTypeName() { |
| return "class " + mClassName; |
| } |
| |
| @Override |
| public final void visit(Set<Instance> resultSet, Filter filter) { |
| if (resultSet.contains(this)) { |
| return; |
| } |
| |
| if (filter != null) { |
| if (filter.accept(this)) { |
| resultSet.add(this); |
| } |
| } else { |
| resultSet.add(this); |
| } |
| |
| ByteArrayInputStream bais = |
| new ByteArrayInputStream(mStaticFieldValues); |
| DataInputStream dis = new DataInputStream(bais); |
| int[] types = mStaticFieldTypes; |
| final int N = types.length; |
| State state = mHeap.mState; |
| |
| /* |
| * Spin through the list of static fields, find all object references, |
| * and visit them. |
| */ |
| try { |
| for (int i = 0; i < N; i++) { |
| int type = types[i]; |
| int size = Types.getTypeSize(type); |
| |
| if (type == Types.OBJECT) { |
| long id; |
| |
| if (size == 4) { |
| id = dis.readInt(); |
| } else { |
| id = dis.readLong(); |
| } |
| |
| Instance instance = state.findReference(id); |
| |
| if (instance != null) { |
| instance.visit(resultSet, filter); |
| } |
| } else { |
| dis.skipBytes(size); |
| } |
| } |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public final int compareTo(ClassObj o) { |
| return mClassName.compareTo(o.mClassName); |
| } |
| |
| public final boolean equals(Object o) { |
| if (! (o instanceof ClassObj)) { |
| return false; |
| } |
| |
| return 0 == compareTo((ClassObj) o); |
| } |
| } |